Mechanical movement



in Model.)

. T. 0. VAN WYOK.

MECHANICAL MOVEMENT.

No. 509,977. Patented Dec. 5, 1893.

UNITED STATES PATENT OFFICE.

TIMOTHY O. VAN VVYOK, OF BROOKLYN, NEW YORK.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 509,977, dated December5, 1893.

I Application filed August 23, 1893. Serial No.483,829. (No model.)

To all whom it may concern:

Beit known that I, TIMOTHY O. VAN WYCK, a cltizen of the United States,residingat Brooklyn, in the county of Kings and State of New York, haveinvented certain newand useful Improvements in Mechanical Movements; andIdo declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

My invention relates to a mechanical movement adapted to multiply speedwithout the use of cog-wheels, and my object is to reducefr1ct1on,increase steadinessandsmoothness of operation, and to avoid thenoise which usually accompanies the use of ordinary gearing.

In the accompanying drawings, Figure 1 represents a perspective view ofmy invention in which the cranks of the several rotary shafts are shownstanding in a vertical position with the movable connecting frame raisedto the highest position it reaches on the driving disk. Dotted linesrepresent the position of parts when the disk is moved an eighth of arevolution from left to right. Fig. 2 represents a front view of thedriving disk, the plurality ofshafts driven thereby, and the connectingframe for connecting thecranks of the driven shafts, the standards forthe shafts being removed, dotted lines being made to represent thevarious positions the connecting frame assumes during the revolution ofthe driving disk, and Fig. 3 detail view of the connecting frame and thestuds which form a connection between the cranks of the driven shafts,and the disk.

The driving disk A, is fixed on the end of a rotary driving shaftB,which shaft is mounted on a standard O. In the face of the disk A, aremade a number of straight diametrical grooves A, which intersect eachother at the center or axis of the disk. The grooves are T-shaped incross-section to receive the heads E of the pins E, projecting out fromthe face of the disk and through a frame G, and ends H, of a number ofcranks. The cranks are fixed to rotary horizontal shafts J, mounted.insuitable bearings J in a standard K. It will -be seen that instead ofthe employment of two intersecting straight grooves at right angles toeach other asin the ordinary trammel wheel or elipsograph, I employdouble this number, or four. As these four grooves or ways ex tendacross the widest diameter of the disk they leave at their point ofintersection,which is the center of the disk, a common space A, therebysubdividing the grooves into double the number or eight shorter grooves.These radiate from the center of the disk, and terminate at theperiphery at distances apart equal to the eighth of a circle. The headsE, of the pins E, are made integral with the latter, and during theirmovements through the grooves the heads roll over the walls, and hencecreate little friction.

In the present instance I have shown, by way of illustration, the drivenshafts provided with screw propellers adapted for the propulsion ofsteam launches. It will be observed that the lower shaft is providedwith a larger propeller, whereby the main power is exerted by the shaftlocated nearest the bottom of the boat.

It is apparent that my mechanism can be utilized and applied in variousother ways for the purpose of multiplying speed, and it is also apparentthat the form of grooves and connection between the revolving drivewheel and the cranks it drives, could be altered in many ways withoutdeparting from the spirit and scope of my invention; and it is furtherapparent that one or more shafts can be driven by the same disk.

The preferred form of my devicehaving been set forth, I will now proceedto describe its operation. Upon application of power to the main driveshaft B, the driving disk Ais made to revolve therewith and eachrevolution causes the sides of the grooves to press upon the heads E, ofthe pins E,which pressure makes the pins shift position, and, beingconnected together by the frame G, they slide in unison from one side ofthe driving wheel to the other, like the movement of an eccentric, andcause the revolution of the cranks I, which in turn revolve the smallshafts J The radii of the circles described by each crank pin passthrough the open space in the center of the driving wheel, or, in otherwords they cross the axis of said wheel, and as the cranks are revolved,the pins pass out of one of the grooves, across the center of thedriving disk and into the coincident groove in the opposite side. Now itwill be seen that the diameter of the circle described by each crank pinon the small shaft is equal to only one half the diameter of the grooveddriving wheel, and hence one revolution of the latter produces tworevolutions of the former.

Some of the advantages of my device are that it can be so employed inconnection with a boat that the main propeller shaft may be located withgreater facility closer to the bottom of the boat, that no grindingnoise or unpleasant vibrations accompany the operation of the mechanism,and that the action of the parts are smooth running and practicallynoiseless.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a mechanical movement, the co mbination with a rotary disk havingradial grooves in its face, of a movable frame provided with studsprojecting in the grooves and actuated by the walls thereof, and aplurality of shafts having cranks connected to and operated by saidframe, all arranged and adapted to operate in the manner, and for thepurpose substantially as described.

2. In a mechanical movement, the combination with a rotary disk havingradial T shaped grooves in its face, of a movable frame provided with astud projecting into the'grooves and actuated by the Walls thereof, aplurality ofpins projecting from the opposite side of the frame and awayfrom it, a plurality of cranks connected to the pins, and shafts fixedto said cranks. V

In testimony whereof I affix mysignature in presence of two witnesses. v

TIMOTHY C. VAN WYCK.

Witnesses:

R. G. DUBOIS, I. B. OWENS.

